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Product costing methods

Unit: Management accounting

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April 2025

2 Questions
Question 3a
​​Zuka Ltd. is planning to introduce a service costing system in its stores operations department. 

Required: 

(i) Explain the concept of service costing as used in management accounting.

(ii) Propose FOUR factors that the company might consider when introducing the service costing system.


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Question 2a
​​Highlight FOUR features of process costing


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December 2024

2 Questions
Question 2a
​ ​​Distinguish between “joint products” and “by-products” as used in the costing methods.


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Question 3c
​ ​​T-shirt Ltd. is a company that manufactures games kits for secondary schools which are embossed with the school logo. A school has ordered a batch of 600 games kits. The following is the direct production batch cost of 100 games kit:

Sh.
Direct materials 
60,000
Direct labour
20,000
Machine setup cost
6,000
Design and logo
30,000
Prime cost
116,000

Additional information: 
1. T-shirt Ltd. absorbs production overheads at a rate of 20% of direct wages cost. 

2. 5% is added to the total production cost of each batch to allow for selling, distribution and administrative overheads. 

3. T-shirt Ltd. requires a notional profit margin of 25% on sales. 

Required: 
Calculate the selling price per unit for the 600 games kit.


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August 2024

1 Questions
Question 5c
​ ​​Saruji Ltd. manufactures a product branded “GemLime”. The company operates several manufacturing processes. In the process I, joint products “Gem” and “Lime” are produced in the ratio of 5:3 by volume from the raw material input. 

The following information relates to process I for the first week of the month of July 2024:

Raw material input
60,000 kilograms at a cost of Sh.3,810,000
Abnormal gain 
1,000 kilograms

Other costs incurred upto the split off point:
Direct labour cost
Sh.1,800,000
Direct expenses
Sh.540,000
Production overheads
110% of direct labour cost

Additional information:
1. Normal loss in process I of 5% of the raw material input is expected. Losses have a realisable value of Sh.50 per kilogram. 

2. The company holds no work-in-progress. 

3. The joint costs are apportioned to the joint products using the physical volume measure basis at split off point. 

Required: 
(i) Prepare process I account for the first week of the month of July 2024 in which both the output volumes and values for each of the joint products are shown separately. 

(ii) Saruji Ltd. can sell product Gem for Sh.20 per kilogram at the end of process I. It is considering a proposal to further process Gem in process II in order to create product “GemLime”. The further processing in process II would cost Sh.4 per kilogram input from process I. In process II, there would be a normal loss in volume of 10% of the input to that process. This loss has no realisable value. Product “GemLime” could then be sold for Sh.26 per kilogram. 

Determine based on financial considerations only, whether product Gem should be further processed to create product “GemLime”.


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August 2023

1 Questions
Question 5b
​ ​ ​ ​​Hard Board Ltd. produces a product that passes through three processes. The data about refining process is as follows:

1
Opening work in progress was 900 units at a total cost of Sh.45,000,000. The degree of completion is as follows:
  • Direct.material............100%
  • Direct labour                40%
  • Production overheads 60% 
2
Data about refining process is as follows:
  • Input of raw materials is 9,100 units for Sh.273,000,000
  • Direct labour is Sh.125,700,000
  • Production overheads is Sh.81,000,000
3
Finished units transferred to finished stores were 7,800 units.
4
Normal scrap loss was 10% of input units and the scrapped units realised Sh.30,000 per unit. 
5
Units scrapped were 1,200 units with the following degrees of completion:
  • Direct material 100%
  • Direct labour 70%
  • Production overheads 70%
6
Closing work in progress was 1,000 units with the following degrees of completion:
  • Direct material 100%
  • Direct labour 80%
  • Production overheads 70%
7
Hard Board Ltd. uses first in first out (FIFO) method.


Required: 
Prepare the following: 

(i) Statement of equivalent units of production. 

(ii) Statement of cost.

(iii) Statement of valuation. 

(iv) Refining process account.


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April 2023

1 Questions
Question 1b
​ ​​ABC Ltd. applies joint process costing in the production process of two joint products; AX and AY. The following information was gathered for the two joint products:

Joint Products
Production
Kgs
Selling price at split-off point
(Sh. per kg)
Separation cost if sold at split-off
(Sh. per kg)
Separation costs if processed further
(Sh. per kg) 

AX
322,000
435.90
125.90
42
AY
600,000
350.90
44.90
28

ABC Ltd. incurred the following joint costs:
Sh.“000”
Conversion costs
125,000
Curing cost 
  80,000
Fermentation cost
120,000
Total joint cost
325,000

Required: 
Calculate the total profit or loss per product if joint costs are allocated to product AX and AY on the basis of: 

(i) Sales value at split-off point.

(ii) Net realisable value at split-off point.


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December 2022

1 Questions
Question 5a
​​Summarise FOUR salient features of process costing systems.


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April 2022

1 Questions
Question 4b
​ ​ ​ ​​Bahati Limited operates a chemical process which produces four different products namely C, F, T and S from the input of raw materials plus water. 

Budget information for the forthcoming financial year is as follows:

Sh. "000"
Raw materials cost
268
Initial processing cost
264
Conversion cost
200

Product
Output
(litres)
Sales
(Sh.000)
Additional processing cost
(Sh.000)

C
400,000
768
160
F
90,000
232
128
T
5,000
32
-
S
9,000
240
8

Additional information: 
  1. The company's policy is to apportion the costs prior to the split-off point on a method based on net realisable value (NRV). 
  2. Currently, the intention is to sell product T without further processing, but to process the other three products after the split-off point. 
  3. An alternative strategy is being proposed so as to sell all the four products at the split-off point without further processing. If this were done, the selling prices obtainable would be as follows:
Product
Selling price per
litre (Sh.)

C
1.28
F
1.60
T
6.40
S
20

Required: 
(i) Budgeted profit statement showing the profit or loss for each product assuming the current processing policy is adopted. 

(ii) The profit or loss by product, and in total, assuming the alternative strategy was to be adopted.


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Question 3b
​​Kasap Ltd. manufactures plastic bottles by mixing materials. The following information was obtained from their management accountant during the month of October 2021: 

  1. Materials used were 12,000 kg at Sh.13 per kg. 
  2. 12 employees worked 120 hours each at a rate of Sh.25 per hour. 
  3. Fixed overheads were absorbed at a rate of 100% of direct labour cost. 
  4. Actual output was 10,000 units. 
  5. There was no opening or closing work in progress.
  6. The company expects a normal 10% of materials input. There is no waste or scrap in the process. 

Required: 
(i) Calculate the expected cost per unit. 

(ii) Process account. 

(iii) If the normal loss is sold at Sh.10.00/kg what would be the revised cost of produced units.


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Question 4c
​​Highlight features of process costing.


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Question 4d
​ ​​Bibi Ltd. produces food which passes through two processes A and B then to finished products. 

Normal loss is estimated at 590 for each process and 10% scrap which realises Sh.80.00 for process A and Sh.200.00 for process B per unit. 

The following information is obtained

A
B
Materials (units)
1,000
70
Cost of materials per unit (Sh.)
125
200
Wages (Sh.)
28,000
10,000
Other direct expenses (Sh.)
8,000
5,250
Output in units
830
780

Required: 
Process accounts for the two processes assuming there was no stock or work in progress in the two processes.


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December 2021

2 Questions
Question 2a
​ ​ ​ ​ ​ ​​(i) Using relevant examples, distinguish between a joint product" and a "by-product".

(ii) Zaidi Industries Ltd. produces two products branded A and B from the same material. The cost of material is Sh.9.50 per kg and the two products appear after Process 1.

Product A can be sold directly to the market but product B requires further processing in Process II. 

The following data relate to the month of October 2021: 


Process
Materials
Sh. 
Labour
Sh. 
Overheads
Sh. 
Total
Sh. 

I
1,440,000
210,000
150,000
1,800,000
II
-
100,000
180,000
   280,000
1,440,000
310,000
330,000
2,080,000

Product
Quantity sold (Kgs)
Closing stock (Kgs)
Sales (Sh.)
A
30,000
15,000
   525,000
B
45,000
-
1,507,500

Additional information: 
  1. There were no materials on hand at the end of the month of October 2021. 
  2. The company uses the sales value method of apportionment for joint costs. 

Required: 
Determine the total cost of Products A and B.


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Question 2b
​ ​ ​​The following data was provided by the cost accountant of Miradi Ltd. relating to marketing expenses and sales for a period of first eight months of the financial ycear ending 31 December 2021.

Month
1
2
3
4
5
6
7
8
Total marketing expenses (Sh."000")
265
302
222
240
362
295
404
400
Sales units (000)
20
24
16
18
26
22
32
30

Preliminary calculations have established the following analysis using the equation in the form ofy = a + bx

Σ(sales unit)
= 4,640 million
Σ(total marketing expenses)²
= Sh.809,598 million
Σ(total marketing expenses x sales units)
= Sh.61,250 million

Required: 
Predict the total marketing expenses for the ninth month when planned sales are 44,000 units.


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September 2021

2 Questions
Question 3a
​​FMS Clinix Ltd. operates two hospitals in a remote area; thus subsidising the cost of its services. 

The following information relating to the two hospitals over the last one year is provided:

Mashariki Hospital
Kusini Hospital
Number of hospital beds
      780
   500
Number of in-patients
  23,472
8,165
Average stay
7½ days
      ?
Number of outpatient visits
216,500
63.920
? Not recorded but bed occupation percentage was 85%.

Additional information:
1
The following information was provided by the accountants based on the two hospitals:
Mashariki Hospital        Kusini Hospital
Inpatients
Outpatients
Inpatients
Outpatients
Direct costs:
Sh.
Sh.
Sh.
Sh.
Supplies and drugs
1,821,520
   693.600
1,551,350
   285,450
Medical staff
8,729,100
3,308,950
6,832,700
1,975,050
Support services
2,210,500 
2,563,700
1,845,380
1,591,620
Indirect costs:
General services
3,524,470
1,721.800
1.937,410
   635,600
Totals
16,285,590
8,288,050
12,166.840
4,487,720
2
Assume a 365-days year.

Required: 
(i) Average length of stay at Kusini Hospital. 

(ii) Bed occupation percentage in Mashariki Hospital 

(iii) Cost per in-patient day for both hospitals. 

(iv) Cost per out-patient attendance for both hospitals.


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Question 5a
​​Double B Ltd. manufactures a chemical that passes through three production processes namely; 1, 2 and 3. In the month of June 2021, 6,000 litres of the basic raw materials priced at Sh.240,000 were introduced into process 1. 

Subsequently, the following costs were incurred:

Element of cost
Total
Process
Sh.
1
Sh.
2
Sh.
3
Sh

Direct materials(additional)
 87,500
30,000
40,000
17,500
Direct labour
110,000
40,000
50,000
20,000
Direct expenses
 16,900
  6,000
  1,600
  9,300

Additional information:
1
Normal output per process was estimated as follows:
Process 1   90%
Process 2   95%
Process 3   92%
2
The output of eachn process was as given below:
                    Litres  
Process 1    5,300
Process 2    5,000
Process 3    4,700
3
The loss in each process represented scrap which could be sold at the following prices:
                   Price per unit (Sh.)
Process 1            20
Process 2            44
Process 3            65
4
There were no stocks of materials or work-in-progress at the beginning or end of the period.
5
The output of each process passes directly to the next process and finally to finished goods.
6
Production overhead is absorbed by each process on a basis of 50% of the cost of direct labour.

Required 
(i) Process 1 account. 

(ii) Process 2 account. 

(iii) Process 3 account. 

(iv) Abnormal loss account. 

(v) Abnormal gain account.


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May 2021

1 Questions
Question 4
​​The following information is available for Process II of Winam Fabrications Ltd. for the month of September 2020: 

Opening stock: 4,800 units valued at Sh. 165,000

Degree of completion:
Materials    70%
Labour       60%
Overheads 60%

Additional information:
1. Transfer from Process I amounted to 30,600 units valued at Sh.306,000. 

2. Additional costs incurred in Process II include: 
                                            Sh. 
   Direct materials           134,400 
   Direct labour                394,200 
   Production overheads 525,600 

3. The units scrapped amounted to 2,400 units with the following degree of completion: 
    Materials    100% 
    Labour         70% 
    Overheads   70% 

4. The closing stock was 5,400 units with the following degree of completion: 
     Materials    60% 
     Labour       40% 
     Overheads 40% 

5. Transfer to Process III amounted to 27,600 units. 

6. There was a normal loss of 10% of production in the process. 

7. The units scrapped were realised at Sh.10 per unit. 

Required: 
(a) Statement of equivalent production. 

(b) Cost of equivalent unit for each element of cost. 

(c) Process II account using the First-in-First Out (FIFO) method. 


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November 2020

1 Questions
Question 5c
​​BIX Feeds Ltd. operates several production processes involving the mixing of ingredients to produce bulk animal feedstuffs. Its main product branded "HW" undergoes two processes; Process 1 and Process 2.

The following information relates to Process 2 for the period under consideration:

Costs incurred
Sh.
Transfers from Process 1
18,770,400
Raw materials cost
4,797,200
Conversion costs
6,317,600
Opening work-in-progress
300,900
Production
Units
Opening work-in-progress
100% complete, apart from Process 2 conversion costs
which were 50% complete)
1,200
Transfers from Process 1
112,000
Completed output
105,400
Closing work-in-progress
(100% complete apart from Process 2 conversion costs
which were 75% complete)
1,600

Additional information:

1. Normal wastage of materials (including product transferred from Process 1), which occurs in the early stages of Process 2 (after all materials have been added), is expected to be 5% of input,

2 Process 2 conversion costs are all apportioned to units of good output.

3. Wastage materials have no saleable value

Required:
Process 2 account for the period, using the First-in-First-Out (FIFO) method.


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November 2019

1 Questions
Question 4a
​​Explain three differences between job costing and process costing.


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May 2019

1 Questions
Question 4b
​ ​​The following information was obtained from the books of Mambo Yote Ltd., a manufacturing company based in a coastal town for the month of April 2019:

Opening inventory (Units)
50,000
Valuation
Sh.
Materials
250,000
Labour
100,000
Overheads
250,000
Units introduced
200,000
Cost incurred
Sh.
Materials
1,000,000
Wages
750,000
Overheads
700,000

Additional information: 
1
During the month of April 2019, 150,000 units were completed and transferred to process II.
2
Closing inventory amounted to 100,000 units with the following degrees of completion:
Materials   100%
Labour        50%
Overheads 40% 
3
Due to the nature of the production process, no losses are anticipated.
4
The company uses the average cost method to value work-in-progress.

Required:
(i) Statement of equivalent production. 

(ii) Statement of apportionment of cost. 

(iii) Process I account. 


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November 2018

1 Questions
Question 4b
​ ​ ​​The following information was obtained from the books of Brickmast Ltd., a company making bricks for sale to contractors in the construction industry:

1
Materials: 
M
1,800 tonnes at Sh.40 per ton.
N
Sh.45,640
2
Labour: 
Direct
Sh.25,560
Indirect 
Sh.8,640
3
Overheads:      Works 25% of direct costs
Office 20% of prime cost and works overhead cost
4
Sales Sh.7,400,000. Sales per brick amount to Sh.400.
5
Royalties are paid at the rate of Sh.0.5 per 1,000 bricks.
6
The production is in batches of 1,000 bricks.
7
Stock of finished bricks:
Opening 800,000
Closing 600,000

Required: 
(i) Batch cost statement. 

(ii) Profit per 1,000 bricks.


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May 2018

1 Questions
Question 4b
​​Karibu Cottages Ltd. operates three types of suites for its customers namely: Standard, Deluxe and Luxury. 

The following information is provided:

1
The number of suites of each type are:
Standard
100
Deluxe
30
Luxury
20
2
The rent of Deluxe suite is to be fixed as 1½ times the standard suite and that of Luxury as twice the standard suite. 
3
The occupancy level for each suite is as follows:
Peak season
Off peak season
Standard suites
90%
50%
Deluxe suites
80%
20%
Luxury suites
60%
20%
4
The expenses are as follows:
o
Room attendant wages per day when occupied:
Suite
Peak season
Sh.
Off peak season
Sh.

Standard
20
30
Deluxe
30
45
Luxury
40
60
o
Lighting, heating and power for full month, when occupied is as follows:
Suite
Lighting
(Sh.)
Power
 (Sh.)
Standard
400
200
Deluxe
600
300
Luxury
800
400
o
Other costs (annual):
Staff salaries
2,200,000
Repairs and renovations
420,000
Linen and laundry
450,000
Interior decorations
500,000
Sundries
315,500
o
Annual depreciation is charged on a straight line basis as follows:
Asset
Cost of asset (Sh.)
Rate per annum (%)
Building
14,000,000
5
Furniture and fixtures
1,000,000
10
Air conditioners
2,000,000
10
5
Peak season is assumed to be 7 months and off-peak season 5 months in a year. One month is taken to have 30 days.
6
Profit including interest on investment is 25% on cost.

Required: 
Advise on the amount of rent to be charged for each type of suite per day.


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November 2017

1 Questions
Question 5b
​​Tegemeo Ltd. manufactures a product which yields three joint products namely; H, N and T. The joint products are then processed further in a common process which consists of two consecutive stages. 

The data below relate to the month of August 2017:

Process 1
Sh.
Process 2
Sh.

Direct materials (30,000 units at Sh.20 per unit)
600,000
-
Conversion costs
765,000
2,262,000
Scrap value of normal loss per unit
5
20

Additional information:
1
The output in Process i is transferred to Process 2 and amounted to 26,000 units.
2
The output in Process 2 consists of three joint products as follows:
Product
H
N
T
Quantity (units)
10,000
7,000
6,000
3
The normal loss for both Process 1 and Process 2 is 10%.
4
The unit selling prices for H, N and T are Sh.180, Sh.200 and Sh.300 respectively.
5
All joint products are sold as soon as they are produced.
6
Sales value method of joint costs apportionment is used.

Required: 
(i) Process 1 account. 
(ii) Process 2 account. 
(iii) Income statement for the joint products.


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Question 1b
​​ In the context of service costing, explain the main features of a service.


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Question 1a
​ ​ ​ ​ ​ ​ ​ ​ ​ ​​New Colour Limited manufacturers two joint products Exe and Wye. A by product Zed is also produced. Output from Process One is transferred to Process Two where the joint products emerge. The following information is available for July 2015:

1


Process One cost data:
Raw material inputs (40.000 kgs)
Direct wages
Overheads
Output:
Transferred to Process Two
By product Zed
Closing work in progress (50% complete as to conversion costs)
........................................................................................................

Sh.9,620,000
Sh.7,650,000
Sh.1,105,000

30,000Kgs
2,000kgs
8,000kgs
2
By product Zed retails at Sh.75 per kg. Additional selling costs amount to Sh. 15 per kg. 500 kgs. were sold in 2 July 2015
3
Process Two cost data:
Additional direct materials
Direct wages
Overheads
Output
Finished goods (Exe and Wye)
Losses in the process
...................................................

Sh. 3,852,500
Sh.6,099,609.5
Sh 3,828,750

28,000kgs
2,000kgs
4
The output is produced in the ratio of 2:3 for products Ese and Wye respectively
5
Normal loss in the process is 2.5% Scrap value per unit is Sh.200.
6
The selling price per unit of each product is as follows:
Exe
Wye
Sh.2,000 per Kg
Sh.1,218.75.per.Kg.
7
Joint costs are allocated on the basis of sales revenue at separation point.

Required:

(i) Statement of production for Process One.

(ii) Process Two account


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